Question
Which attribute would we use so that a user can’t submit a form without filling in a certain line of the form?
mandatory
necessary
required
essential
mandatory
necessary
required
essential
Answers
GPT-4o mini
The correct attribute to use so that a user can’t submit a form without filling in a certain line of the form is **required**.
In HTML, you can add the `required` attribute to an input field to ensure that it must be filled out before the form can be submitted. For example:
```html
<input type="text" name="username" required>
```
In HTML, you can add the `required` attribute to an input field to ensure that it must be filled out before the form can be submitted. For example:
```html
<input type="text" name="username" required>
```